I believe this is the reason why the new style Mustangs have not been selling well. When the 2010 came out everyone knew the 2011 would have the 5.0L. Then you have the people who never want to own the first of the new engines due to "bugs". Now you have people who might want to wait and see what the 2013 is going to look like before they decide to purchase one. The Mustang is a way better car then the Camaro and it should be selling better!